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The metabolic and body composition effects of a CREBRF gene variant in healthy adults

The metabolic and body composition effects of a CREBRF gene variant in healthy adults

Status
Recruiting
Phases
Unknown
Study type
Interventional
Source
ANZCTR
Registry ID
ACTRN12617000956303
Enrollment
125
Registered
2017-07-04
Start date
2017-09-25
Completion date
Unknown
Last updated
2018-07-02

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

None listed

Brief summary

Fat rather than body weight is the greatest risk factor for type 2 diabetes. Body mass index (BMI: calculated by height divided by weight squared) is often used as a measure of body fat. However, in some people it does not accurately reflect the amount of fat. This is interesting because it has recently been found that people with a small change (variant) in a gene called CREBRF have a higher BMI, but a LOWER risk of developing type 2 diabetes. In this study we are investigating whether people with a CREBRF gene variant have different lean (muscle) or fat mass, and we are trying to understand how this gene variant lowers the risk of developing type 2 diabetes

Interventions

Mixed meal tolerance test: A high carbohydrate (60g) and fat (20g) meal. Test food will be delivered in both a liquid drink and typical breakfast food. Blood samples (10ml) will be taken from a cannula pre meal and every 15-30 minutes for 2 hours, For the whole day the total volume of blood taken will be 250 ml, this is less than 1 cup and half the volume of a blood donation. This will occur at the clinic rooms at The University of Auckland and administered by the PI. We will also collect res

Mixed meal tolerance test: A high carbohydrate (60g) and fat (20g) meal. Test food will be delivered in both a liquid drink and typical breakfast food. Blood samples (10ml) will be taken from a cannula pre meal and every 15-30 minutes for 2 hours, For the whole day the total volume of blood taken will be 250 ml, this is less than 1 cup and half the volume of a blood donation. This will occur at the clinic rooms at The University of Auckland and administered by the PI. We will also collect respiratory samples and body composition measures prior to this meal.

Sponsors

University of Auckland
Lead SponsorUniversity

Study design

Allocation
Non-randomised trial
Intervention model
Single group
Primary purpose
Prevention
Masking
Open (masking not used)

Eligibility

Sex/Gender
All
Age
18 Years to 50 Years
Healthy volunteers
Yes

Inclusion criteria

Aged 18-50 years, male or female.

Exclusion criteria

Have diabetes Have any long-term serious medical conditions

Outcome results

None listed

Source: ANZCTR · Data processed: Feb 4, 2026